The Ford Barn

petehoovie · 07-13-2023, 11:27 AM

https://www.hemmings.com/stories/daf...-articulation/

miniceptor86 · 07-13-2023, 12:16 PM

Gotta like the green pickup with the pup tent!

jayvee34 · 07-13-2023, 05:00 PM

I have seen a lot of military vehicles during my military career, but never
like these three. Love um!
Looks like the rear end has chains to the wheels from a single axle.

Thanks for sharing.

highbeams · 07-13-2023, 05:47 PM

Thanks! A coat & tie was required?

highbeams · 07-13-2023, 05:48 PM

Quote:

Originally Posted by jayvee34

I have seen a lot of military vehicles during my military career, but never
like these three. Love um!
Looks like the rear end has chains to the wheels from a single axle.

Thanks for sharing.

Semper Fi - '66-'68

petehoovie · 07-13-2023, 06:35 PM

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Quote:

Originally Posted by jayvee34

I have seen a lot of military vehicles during my military career, but never
like these three. Love um!
Looks like the rear end has chains to the wheels from a single axle.

Thanks for sharing.

1952henry · 07-13-2023, 07:30 PM

Looks like ring gear and pinion to drivers.

jayvee34 · 07-14-2023, 08:02 AM

Quote:

Originally Posted by 1952henry

Looks like ring gear and pinion to drivers.

Yes they do, my mistake for thinking they were chain driven.

1952henry · 07-14-2023, 09:39 AM

In all fairness, I had the benefit of Petehoovie’s large picture.

V8COOPMAN · 07-14-2023, 06:27 PM

.

That could be a little bit interesting trying to figure a FINAL drive ratio on that contraption. Realistically assuming that the four wheels would turn at the same speed, I see THREE sets of ring and pinion ratios that need to be figured into the equation.

Coop

corvette8n · 07-14-2023, 06:51 PM

My brother had a 1967(?) DAF flat 2 cylinder, centrifugal clutch, pulley driven transmission. I remember pulling the motor and carrying it down the cellar to rebuild the clutch. Cool little car.

1952henry · 07-14-2023, 06:59 PM

This outfit was in good company with Mercedes Benz and their Unimog. The portal axles had a lot of gears and goodies in them. Not a lot more complicated than the front axle from a WW2 Mack NO 7.5 ton 6x6. No u-joints or cv joints in the turning knuckle. Torque was delivered to the wheels via pinions and ring gears.

ford38v8 · 07-14-2023, 07:00 PM

Quote:

Originally Posted by V8COOPMAN

.

That could be a little bit interesting trying to figure a FINAL drive ratio on that contraption. Realistically assuming that the four wheels would turn at the same speed, I see THREE sets of ring and pinion ratios that need to be figured into the equation.

Coop

Something to ponder… it would seem to make sense that the final axle drive ring/pinion would be the same ratio as the primary axle drive assembly, one ratio canceling the other… except for a perceived need for clocking to prevent aggravated wear patterns. I would assume that a minor ratio difference would be a given in such a complicated arrangement of gearing, if for that reason alone.

petehoovie · 07-14-2023, 08:01 PM

Ya think?

rotorwrench · 07-15-2023, 04:24 PM

DAF in Eindhoven was an up and coming conversion company in 1936 when they started developing those dual rear drive set ups. The Dutch military may have had an interest in those types but after the German invasion in 1940, the Werhermacht were too busy ripping off a lot of what was available in the Netherlands. Late in the war DAF was starting to prototype things for the Germann invaders but they didn't get much in production before the Werhermacht bugged out after allied forces finally retook the Netherlands.

The M39 Pantserwagon was one of the few products that were made for the Dutch military prior to the German invasion.

petehoovie · 07-15-2023, 04:57 PM

Quote:

Originally Posted by rotorwrench

DAF in Eindhoven was an up and coming conversion company in 1936 when they started developing those dual rear drive set ups.

The M39 Pantserwagon was one of the few products that were made for the Dutch military prior to the German invasion.

cas3 · 07-15-2023, 06:04 PM

Cool stuff. My friend has a ww2 Mack NO, I'll have to ask him about the front axle now.

flatford8 · 07-15-2023, 07:14 PM

Quote:

Originally Posted by miniceptor86

Gotta like the green pickup with the pup tent!

I like it too!…. the tandem axle must have been for traction…….or would ammo be a lot of weight in the small cargo box?…….Mark

drolston · 07-15-2023, 08:59 PM

The outboard banjos appear to be a ring gear driving two pinions to the front and rear wheel on each side. Big gear driving little gear puts a hell of a lot of torque on the big gear axle, - judging from the size of the ring and pinion (~4:1), about four times the torque. But that appears to be a pretty stout shaft. Reduction in the wheel hubs would mitigate that torque requirement, but from the size of those hubs, maybe only 2:1.

So, if they wanted a 5:1 ratio from engine to wheel for reasonable road speed, the center ring and pinion would have to be 10:1. No way that fits in the carrier depicted, so the transmission probably has something line 2:1 reduction in high gear.

All pure speculation on my part, but I am fascinated by such contraptions.

petehoovie · 07-15-2023, 09:12 PM

Quote:

Originally Posted by cas3

Cool stuff. My friend has a ww2 Mack NO, I'll have to ask him about the front axle now.

07-13-2023, 11:27 AM	#1
petehoovie Senior Member Join Date: May 2015 Posts: 8,151	Interesting Article - WW2 Ford Variants https://www.hemmings.com/stories/daf...-articulation/ __________________ The only thing nice about being imperfect is the joy it brings to others.... *"Silver rings, your butt! Them's washers!"* "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 Last edited by petehoovie; 07-13-2023 at 11:36 AM.

07-13-2023, 12:16 PM	#2
miniceptor86 Senior Member Join Date: Aug 2019 Location: McGregor, IA Posts: 233	Re: Interesting Article - WW2 Ford Variants Gotta like the green pickup with the pup tent! __________________ Cheers, Jim&Sandy McGregor, IA

07-13-2023, 05:00 PM	#3
jayvee34 Senior Member Join Date: Apr 2021 Location: St. Augustine, Fl. Posts: 437	Re: Interesting Article - WW2 Ford Variants I have seen a lot of military vehicles during my military career, but never like these three. Love um! Looks like the rear end has chains to the wheels from a single axle. Thanks for sharing. __________________ IN GOD WE TRUST - SEMPER FIDELIS John

07-13-2023, 05:47 PM	#4
highbeams Senior Member Join Date: Dec 2014 Location: California Posts: 802	Re: Interesting Article - WW2 Ford Variants Thanks! A coat & tie was required?

07-13-2023, 07:30 PM	#7
1952henry Senior Member Join Date: May 2010 Location: North Dakota Posts: 1,621	Re: Interesting Article - WW2 Ford Variants Looks like ring gear and pinion to drivers. __________________ I dig coal, which provides motivation for EVs.

07-14-2023, 09:39 AM	#9
1952henry Senior Member Join Date: May 2010 Location: North Dakota Posts: 1,621	Re: Interesting Article - WW2 Ford Variants In all fairness, I had the benefit of Petehoovie’s large picture. __________________ I dig coal, which provides motivation for EVs.

07-14-2023, 06:27 PM	#10
V8COOPMAN Senior Member Join Date: May 2010 Location: East Shore of LAKE HOUSTON Posts: 11,114	Re: Interesting Article - WW2 Ford Variants . That could be a little bit interesting trying to figure a FINAL drive ratio on that contraption. Realistically assuming that the four wheels would turn at the same speed, I see THREE sets of ring and pinion ratios that need to be figured into the equation. Coop __________________ *Click Links Below* __ ▼ *'35-'36 W/8BA & MECHANICAL FAN* *T5 W/TORQUE TUBE*

07-14-2023, 06:51 PM	#11
corvette8n Senior Member Join Date: Jul 2010 Location: 36 miles north of Albany NY Posts: 2,954	Re: Interesting Article - WW2 Ford Variants My brother had a 1967(?) DAF flat 2 cylinder, centrifugal clutch, pulley driven transmission. I remember pulling the motor and carrying it down the cellar to rebuild the clutch. Cool little car.

07-14-2023, 06:59 PM	#12
1952henry Senior Member Join Date: May 2010 Location: North Dakota Posts: 1,621	Re: Interesting Article - WW2 Ford Variants This outfit was in good company with Mercedes Benz and their Unimog. The portal axles had a lot of gears and goodies in them. Not a lot more complicated than the front axle from a WW2 Mack NO 7.5 ton 6x6. No u-joints or cv joints in the turning knuckle. Torque was delivered to the wheels via pinions and ring gears. __________________ I dig coal, which provides motivation for EVs. Last edited by 1952henry; 07-14-2023 at 07:07 PM.

07-14-2023, 08:01 PM	#14
petehoovie Senior Member Join Date: May 2015 Posts: 8,151	Re: Interesting Article - WW2 Ford Variants Ya think? __________________ The only thing nice about being imperfect is the joy it brings to others.... *"Silver rings, your butt! Them's washers!"* "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0

07-15-2023, 04:24 PM	#15
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,436	Re: Interesting Article - WW2 Ford Variants DAF in Eindhoven was an up and coming conversion company in 1936 when they started developing those dual rear drive set ups. The Dutch military may have had an interest in those types but after the German invasion in 1940, the Werhermacht were too busy ripping off a lot of what was available in the Netherlands. Late in the war DAF was starting to prototype things for the Germann invaders but they didn't get much in production before the Werhermacht bugged out after allied forces finally retook the Netherlands. The M39 Pantserwagon was one of the few products that were made for the Dutch military prior to the German invasion. Last edited by rotorwrench; 07-15-2023 at 04:30 PM.

07-15-2023, 06:04 PM	#17
cas3 Senior Member Join Date: Jan 2011 Location: sw minnesota Posts: 4,577	Re: Interesting Article - WW2 Ford Variants Cool stuff. My friend has a ww2 Mack NO, I'll have to ask him about the front axle now.

07-15-2023, 08:59 PM	#19
drolston Senior Member Join Date: Jun 2014 Location: Williamsburg, VA Posts: 1,627	Re: Interesting Article - WW2 Ford Variants The outboard banjos appear to be a ring gear driving two pinions to the front and rear wheel on each side. Big gear driving little gear puts a hell of a lot of torque on the big gear axle, - judging from the size of the ring and pinion (~4:1), about four times the torque. But that appears to be a pretty stout shaft. Reduction in the wheel hubs would mitigate that torque requirement, but from the size of those hubs, maybe only 2:1. So, if they wanted a 5:1 ratio from engine to wheel for reasonable road speed, the center ring and pinion would have to be 10:1. No way that fits in the carrier depicted, so the transmission probably has something line 2:1 reduction in high gear. All pure speculation on my part, but I am fascinated by such contraptions.